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| author |   Ganesh Goudar <ganeshgr@chelsio.com> | 2018-07-18 17:36:12 +0530 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2018-07-18 10:52:46 -0700 |
| commit | fa145d5dfd612ac318a1eb4b443af55e0f5c8ba7 (patch) | |
| tree | 3333acf2078123325d11568045013ae3cfcf2812 /drivers/net/ethernet/chelsio | |
| parent | Merge branch 'mlxsw-Introduce-initial-Spectrum-2-support' (diff) | |
| download | linux-dev-fa145d5dfd612ac318a1eb4b443af55e0f5c8ba7.tar.xz linux-dev-fa145d5dfd612ac318a1eb4b443af55e0f5c8ba7.zip | |
cxgb4: display number of rx and tx pages free
display free rx and tx page count in the meminfo of
an adapter.
Signed-off-by: Casey Leedom <leedom@chelsio.com>
Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/chelsio')
| -rw-r--r-- | drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c | 22 | ||||
| -rw-r--r-- | drivers/net/ethernet/chelsio/cxgb4/t4_regs.h | 14 |
2 files changed, 29 insertions, 7 deletions
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c index 511606fd1b20..631b78baedbb 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c +++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c @@ -2858,6 +2858,7 @@ static int meminfo_show(struct seq_file *seq, void *v) { static const char * const memory[] = { "EDC0:", "EDC1:", "MC:", "MC0:", "MC1:", "HMA:"}; + unsigned int free_rx_cnt, free_tx_cnt; struct adapter *adap = seq->private; struct cudbg_meminfo meminfo; int i, rc; @@ -2889,13 +2890,20 @@ static int meminfo_show(struct seq_file *seq, void *v) mem_region_show(seq, "uP Extmem2:", meminfo.up_extmem2_lo, meminfo.up_extmem2_hi); - seq_printf(seq, "\n%u Rx pages of size %uKiB for %u channels\n", - meminfo.rx_pages_data[0], meminfo.rx_pages_data[1], - meminfo.rx_pages_data[2]); - - seq_printf(seq, "%u Tx pages of size %u%ciB for %u channels\n", - meminfo.tx_pages_data[0], meminfo.tx_pages_data[1], - meminfo.tx_pages_data[2], meminfo.tx_pages_data[3]); + for (i = 0, free_rx_cnt = 0; i < 2; i++) + free_rx_cnt += FREERXPAGECOUNT_G + (t4_read_reg(adap, TP_FLM_FREE_RX_CNT_A)); + seq_printf(seq, "\n%u Rx pages (%u free) of size %uKiB for %u channels\n", + meminfo.rx_pages_data[0], free_rx_cnt, + meminfo.rx_pages_data[1], meminfo.rx_pages_data[2]); + + for (i = 0, free_tx_cnt = 0; i < 4; i++) + free_tx_cnt += FREETXPAGECOUNT_G + (t4_read_reg(adap, TP_FLM_FREE_TX_CNT_A)); + seq_printf(seq, "%u Tx pages (%u free) of size %u%ciB for %u channels\n", + meminfo.tx_pages_data[0], free_tx_cnt, + meminfo.tx_pages_data[1], meminfo.tx_pages_data[2], + meminfo.tx_pages_data[3]); seq_printf(seq, "%u p-structs\n\n", meminfo.p_structs); diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_regs.h b/drivers/net/ethernet/chelsio/cxgb4/t4_regs.h index 446aaff15bae..da885881c02f 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/t4_regs.h +++ b/drivers/net/ethernet/chelsio/cxgb4/t4_regs.h @@ -1502,6 +1502,20 @@ #define TP_MIB_DATA_A 0x7e54 #define TP_INT_CAUSE_A 0x7e74 +#define TP_FLM_FREE_RX_CNT_A 0x7e84 + +#define FREERXPAGECOUNT_S 0 +#define FREERXPAGECOUNT_M 0x1fffffU +#define FREERXPAGECOUNT_V(x) ((x) << FREERXPAGECOUNT_S) +#define FREERXPAGECOUNT_G(x) (((x) >> FREERXPAGECOUNT_S) & FREERXPAGECOUNT_M) + +#define TP_FLM_FREE_TX_CNT_A 0x7e88 + +#define FREETXPAGECOUNT_S 0 +#define FREETXPAGECOUNT_M 0x1fffffU +#define FREETXPAGECOUNT_V(x) ((x) << FREETXPAGECOUNT_S) +#define FREETXPAGECOUNT_G(x) (((x) >> FREETXPAGECOUNT_S) & FREETXPAGECOUNT_M) + #define FLMTXFLSTEMPTY_S 30 #define FLMTXFLSTEMPTY_V(x) ((x) << FLMTXFLSTEMPTY_S) #define FLMTXFLSTEMPTY_F FLMTXFLSTEMPTY_V(1U) |